CN201347946Y

CN201347946Y - Inner column pin type slewing bearing

Info

Publication number: CN201347946Y
Application number: CNU2008201445411U
Authority: CN
Inventors: 张文; 刘文贵
Original assignee: Borun New Energy Science & Technology Co Ltd
Current assignee: Borun New Energy Science & Technology Co Ltd
Priority date: 2008-12-17
Filing date: 2008-12-17
Publication date: 2009-11-18
Anticipated expiration: 2018-12-17

Abstract

The utility model discloses a slewing bearing which can be meshed with a chain wheel; the inner column pin type slewing bearing comprises a slewing bearing; the slewing bearing comprises an inner ring, an outer ring and a rolling element; the inner ring and the outer ring can rotate relatively through the rolling element; the middle of the inner ring is a hole; both end surfaces close to the middle hole of the inner ring are provided with holes uniformly distributed around the middle hole; the center of the distribution circle of the holes coincides with the slewing center of the slewing bearing; a column pin goes through the hole on the inner ring, and is fixedly connected on the inner ring. The center of the distribution circle of the holes coincides with the slewing center of the slewing bearing; the column pin goes through the hole on the outer ring and a circular groove, and is fixedly connected on the inner ring; the hole on one end surface of the inner ring of the slewing bearing is an unthreaded hole, and the hole on the other end surface is a threaded hole; one end of the column pin is provided with thread, goes through the unthreaded hole on one end surface of the inner ring, and is connected with the threaded hole on the other end surface of the inner ring. The slewing bearing and the column pin are combined into an entirety, thereby expanding the transmission scope, and possessing the condition for being meshed with the chain wheel.

Description

Interior pin-type load pivoting support

Technical field

The utility model relate to a kind of can with the pivoting support of sprocket engagement.

Background technique

Conventional pivoting support is by Internal and external cycle, and the rolling element composition, and the outer ring can realize rotating with respect to inner ring, has the straight-tooth profile of tooth that forms through machining on the inner ring, thereby can mesh with exterior part, reaches the purpose of transmission.This type of pivoting support has following not enough point:

1, the process-cycle is long.The processing method of tooth is mainly by metal-cutting machine tool on the inner ring at present, and utilization generating method and dedicated tool are processed profile of tooth.The cog machining cycle for big modulus, major diameter gear ring is long especially, even needs several days just can finish 1 cog machining, can not adapt to the rhythm of present model change;

2, cost height.For major diameter, big modulus internal tooth pivoting support, existing processing method is to adopt special special-purpose hob cutter to carry out cutting.For guaranteeing flank of tooth quality preferably, need often cutter to be carried out reconditioning, cause bigger cutter loss.Manufacture cost is sharply risen;

3,, can't rapid processing go out the profile of tooth with sprocket engagement, thereby placed restrictions on its application area in transmission because the problem of processing;

4, working service cost height.Because profile of tooth and pivoting support are integrative-structures, after tooth portion uses wearing and tearing, can only change whole pivoting support, cost is high.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, design a kind of can with the pivoting support of profile of tooth engagement driving such as sprocket wheel.

The purpose of this utility model is achieved like this:

Pin-type load pivoting support in a kind of, comprise pivoting support, pivoting support comprises inner ring, outer ring, rolling element, can relatively rotate by rolling element between inner ring, the outer ring, the centre of inner ring is a center hole, and the both ends of the surface of center hole are provided with along the uniform hole of center hole in the middle of the close inner ring, and the distribution circle center in hole overlaps with the gyration center of pivoting support, pin passes the hole on the inner ring, is fixedly connected on the inner ring.

The centre of pin is a shank, and an end is a screw thread, is fixedly connected on the inner ring by nut.

Hole on the inner ring both ends of the surface of pivoting support is a unthreaded hole on one end face, is screw on the other end.

One end of pin is a screw thread, passes the unthreaded hole on inner ring one end face, is connected with screw on the inner ring other end.

Beneficial effect: the utility model includes pivoting support, pin, on the inner ring of pivoting support, does not reprocess profile of tooth, but is processed with one group of hole that pin is installed, and the distribution circle center in this group hole overlaps with the gyration center of pivoting support.Pin inserts and to be installed in one group of distribution circle of inner ring and the hole that gyration center overlaps, and closely cooperates with the hole.

The utility model is in aggregates with pivoting support and pin combination, has widened transmission range, has the following advantages:

1, makes simply.Because internal tooth is the pin assembly parts, makes the pivoting support inner ring only need process attachment hole, has reduced difficulty of processing, has shortened the process-cycle greatly, is convenient to realize many kinds, the flexible manufacturing of small batch;

2, low cost of manufacture.Because the simplification of manufacturing process, the loss of dedicated tool and stock's stock are cancelled, and make manufacture cost reduce greatly;

3, expanded application area.This model utility makes pivoting support possess meshing condition with sprocket wheel etc., has expanded its application area at transmission field;

4, extend working life.Because pin is connected for assembling with pivoting support.Therefore, after pin transmission wearing and tearing, can carry out the replacing or the repairing of pin easily.And need not to change whole pivoting support;

5, the working service cost is low.Because above structural reason, make the pin after the wearing and tearing be changed or repair, and need not change whole pivoting support, thereby greatly reduce user cost, and make maintenance easier.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the plan view of Fig. 1;

Fig. 2 is an another kind of structural representation of the present utility model.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Referring to Fig. 1, Fig. 2, pin-type load pivoting support in a kind of, comprise pivoting support 1, pivoting support 1 comprises inner ring 1.1, outer ring 1.3, rolling element 1.2, can relatively rotate by rolling element 1.2 between inner ring 1.1, the outer ring 1.3, the centre of inner ring 1.1 is a center hole 5, be provided with along the uniform hole 6 of center hole 5 near the both ends of the surface of center holes 5 in the middle of the inner ring 1.1, the distribution circle center in hole 6 overlaps with the gyration center of pivoting support 1, pin 2 passes the hole 6 on the described inner ring 1.1, is fixedly connected on the inner ring 1.1.

Referring to Fig. 1, the centre of described pin 2 is that shank 2.1, one ends are screw thread, is fixedly connected on the inner ring 1.1 by nut 2.2.

Referring to Fig. 3, be unthreaded hole 7 on hole 6, one end faces on inner ring 1.1 both ends of the surface of pivoting support 1, on the other end screw 8.One end of pin 2 is a screw thread, passes the unthreaded hole 7 on inner ring 1.1 1 end faces, be connected with screw 8 on inner ring 1.1 other ends, and without nut as fastening piece.

Claims

1, pin-type load pivoting support in a kind of, comprise pivoting support (1), it is characterized in that: described pivoting support (1) comprises inner ring (1.1), outer ring (1.3), rolling element (1.2), inner ring (1.1), can relatively rotate by rolling element (1.2) between the outer ring (1.3), the centre of inner ring (1.1) is center hole (5), both ends of the surface near center hole (5) in the middle of the inner ring (1.1) are provided with along the uniform hole (6) of center hole (5), the distribution circle center in hole (6) overlaps with the gyration center of pivoting support (1), pin (2) passes the hole (6) on the described inner ring (1.1), is fixedly connected on the inner ring (1.1).

2, interior pin-type load pivoting support according to claim 1, it is characterized in that: the centre of described pin (2) is shank (2.1), and an end is a screw thread, is fixedly connected on the inner ring (1.1) by nut (2.2).

3, interior pin-type load pivoting support according to claim 1, it is characterized in that: the hole (6) on inner ring (1.1) both ends of the surface of described pivoting support (1) is unthreaded hole (7) on the end face, is screw (8) on the other end.

4, pin-type load pivoting support in according to claim 3, it is characterized in that: an end of described pin (2) is a screw thread, passes the unthreaded hole (7) on inner ring (1.1) one end faces, is connected with screw (8) on inner ring (1.1) other end.